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The unsolved problem of "free will"

Roger Penrose suggested that quantum effects in the brain provide a basis for human freedom.

Introducing truly random effects into the thinking progress does not introduce free will, it just removes determinism. In any case, there's no evidence that the physics required for the arising of consciousness requires anything on the quantum level. And even if it did, that's still a separate issue from whether the thought processes themselves (the "thinking" of thinking) does anything other than some deterministic, weighted symbol-pushing.

The conscious experience (the painfulness of pain, etc.) makes for a wonderful driving mechanism (one of the core problems of AI, i.e. deciding what to do and why) that evolution latched onto. (Of course, why such a wonderful mechanism even exists, to say nothing of how it works, such that brain evolution can hook into this facility and put it to work is another issue.)

As such is a wonderful, and terrible thing (pain), that's good and all, but I don't suspect it is particularly necessary for intelligent operation -- the philosophical "zombie" person should be possible in reality. I think when humanity knows a lot more about how the conscious experience works, they will be able to see if it is truly a natural process (i.e. it's pretty wild, and was shaped into what it is and how it was used, the way atoms were shaped into cells and bones) or something else.
 
Mr. (Dr.?) "Adequate": I have no idea what you are talking about. Why would "religious trolls" (what does that mean anyway; what is a "troll" in this context?) want to meet me. Because I am not skeptical about being an atheist scientific materialist? True, it is a matter of faith with me, but so what?
 
OK, read the "SkeptiWiki" article on free will. It is pretty good, agrees with most of my thoughts. Is unsigned and has no citations. Pretty much where we left off. What is the next thought on this?
 
The question of "free will" always resolves to semantics. For me, "free will" is an exact synonym of "ability to choose" and as such, it very useful to describe a phenomenon that is so widely understood that it would be ludicrous to describe it as "non-existent". For others, "free will" is some combination of forces and/or entities that control what we "think" we are choosing. That definition requires far too much hypothesizing for my taste, and I wouldn't employ it in any but deep philosophical discussions. As such, it is pretty much useless.
Yes, but what does the "ability to choose" actually mean? Does a computer program with at least one "if...then" statement qualify as being able to choose?

Personally I think we are just equivalent to a computer program. A program with lots of inputs. A program able to change its own code. And possibly with a few random generators thrown in. But a program all the same.
 
Would you assume that your alien masters are controlling your thoughts from somewhere outside of your brain?
No need to invent alien masters. The point of interest is your clearly wrong assumption that the brain is a self-contained system that doesn't take orders from an outside source.
 
No need to invent alien masters. The point of interest is your clearly wrong assumption that the brain is a self-contained system that doesn't take orders from an outside source.
So what is the "correct assumption", since it is so very clear to you?
 
No. Things like blood pressure, blood oxygen content, blood alcohol level, viruses, cosmic rays, trauma, etc, etc.
OK, so you're saying that the brain recieves information. What happens next? Does the brain do something with that information?
 
OK, so you're saying that the brain recieves information. What happens next? Does the brain do something with that information?
In the cases where the outside influence arrives in the brain in the form of "information" it processes this information in its normal fashion. In the cases where the outside influence affects the processíng aparatus directly, its processing is disturbed.
 
In the cases where the outside influence arrives in the brain in the form of "information" it processes this information in its normal fashion. In the cases where the outside influence affects the processíng aparatus directly, its processing is disturbed.

Right. And in either case, the processing is done solely by the brain, and not by any outside agency?
 
Of course it is true that one cannot trust just conscious experience to believe in apparent freedom of action. Dogs, whose "consciousness" is not accessible to us, appear to have some freedom of action, at least compared to potatoes. And probably we behave like dogs to others more sentient than us.
What a piece of work is a man!
how noble in reason! how infinite in faculties!
in form and moving how express and admirable!
in action how like an angel!
in apprehension how like a dog!

--Shakespeare and Pavlov.

By saying a dog's consciousness is not accessible to us, you have assumed your conclusions. There is a very good argument to be made that consciousness is behavior--and that only a subset of behavior (private behavior) is inaccessible to us...and that subset is equally inaccessible in other humans, who we generally grant are conscious.
Reductio arguments are equally unavailing. Of course, of course, we are, like dogs and potatoes, chemical and material. That is not the question at all, at least to me, though most of humanity clings to dualism. However, matter has mysterious properties. Eighteenth century determinism (the billiard ball universe) has been superceded by 20th century physics. Having said this, I do not believe quantum effects can be invoked to explain the phenomenon. My guess would be that apparent freedom of choice is an emergent property of highly interconnected neural systems, i.e. brains. Why that happens is a profound scientific mystery, and one that seems we have not gained much ground on.
You are looking at the wrong kind of control. Not billiard ball determinism, but selection by consequences. The former is easy to see, but the latter, especially with multiply determined behavior, is extremely difficult. Ask Darwin. But when examined systematically, it is demonstrably there.
[snip]
More probelmatically, mens rea, the legal term for the "conscious" state that is the sine qua non of legal responsibility, has phenomenological import. A sleepwalker lacks it. A drunk might also, but it is retroactive to the decision to drink. Consciousness *and* its handmaiden choice are assumed to be the key to responsibility. Yet most scientific analyses of the human condition, as we see in this thread, are quick to discard consciousness and get to the real meat of neurochemical reactions. I agree, lets do that. But what do to with the legal system and entire culture built on consciousness?
The current legal system is based on a prescientific understanding of behavior. Do not look to it for "truth". It is easy enough to recognize the effects of consequences on behavior, and to choose to reward and punish behaviors in the best interest of the long term survival of a given culture. There is no need for "mens rea" to enter into it. A recognition of determinism does not mean that we let the criminal off with "his environment made him do it." Rather, if we recognize that his behavior is determined in part by the consequences of his actions, appropriate contingencies must be applied to reduce that undersirable behavior.
A very interesting idea: could a test of consciousness be devised? Either for humans or for animals. I once discussed a possible consciousness (or at least self awareness) test for dolphins. It involved showing the mammal a mirror of itself and then substituting a taped image that did not mirror in real time. Or something like that. Eventually, no one agreed it could prove much. As I indicated in the first post to this thread, the lack of a consciousness test shows, I posit, the essentially subjective nature of the expression.
For a very limited definition of consciousness. Note that the big problem remains one of shoddy definitions and prescientific assumptions about human nature.
But maybe that is a good discussion. Is there a test for consciousness? (And don't give me the old Turing test.)
What sort of consciousness? You must define what you mean before we can test for it. By some definitions, of course, thermostats are conscious. My computer is conscious. So is my car. (and these are by real and useful definitions of consciousness.) So... what sort of consciousness are you testing for? Do you know it exists? Suppose you search for it but do not find it? Still sure it exists?
 
The processing in the brain occurs exclusively in the brain, yes.

So then you agree with my "unfounded assumption"? Instead of going on the attack, you could have asked for clarification, and we could have spent the last 20 minutes on something fruitful. By "self-contained", I simply meant that the brain does everything that the brain does without any outside assistance. Usually, someone makes the unfounded assertion that there's some sort of "soul" or other agency outside of the brain that is carrying part of the workload. :D
 

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